RivaTuner Advanced Discussion forum This forum is intended for advanced comments, ideas and general discussion of the RivaTuner Utility which is hosted here at the Guru of 3D. This forum is visited by programmer himself - you can only post in this area with a minimum of 10 posts and 7 days forum membership.

Since the BIOS flash is quite harmless to do, and there are a lot of people here that need Quadro capabilities enabled on their 6800 cards, i am setting up this poll so we can see how successful this method is. Of course, the success should be determined by running SpecViewperf suite of benchmarks and comparing the results to the real Quadro FX 4000 in the Spec database.

OK, here's the deal : the Bios mod (I also did half the hardmod) works just fine, BUT the reason I abandoned this bios a long time ago, is that it simply WILL not listen to the pipeline-deactiviation thing (the bios mods or the NVStrap routine).

Thus, I return my card to the factory [8x1,4vp], and still it uses all vertex processors (even the faulty one) for movie playback or specview (aka opengl).

first off , ive read these forums for a while now and never posted before, so hi all

secondly , nice work on this mod

my card is the xfx gt 6800

ive just finished modding the bios and now my card is showing as the quadro 4000

just need to enable my extra pipes now

ive already tested it on 3ds max7 demo and i cannot believe how much better the performance is ,to compare , i had a model of a space ship (sulaco off aliens) , using the standard gt6800 before modding , the amount of edges, polys etc made this file really chug, it was so bad i never actually used it for anything

now- with the mod, this file flies round , i can even copy the mesh a few times before noticing any performance loss

it was a well worth risk i took modding this card as i have never modded anything before heh

That Dell FX 4000 Quadro bios was only meant to be an engineer test beta bios, people should try getting hold of a fully verified "release version" bios extracted from a BFG/PNY/Leadtek FX4000 card which is likely to have further tweaks since the Dell engineer beta release bios.

Originally posted by jbuk first off , ive read these forums for a while now and never posted before, so hi all

secondly , nice work on this mod

my card is the xfx gt 6800

ive just finished modding the bios and now my card is showing as the quadro 4000

just need to enable my extra pipes now

ive already tested it on 3ds max7 demo and i cannot believe how much better the performance is ,to compare , i had a model of a space ship (sulaco off aliens) , using the standard gt6800 before modding , the amount of edges, polys etc made this file really chug, it was so bad i never actually used it for anything

now- with the mod, this file flies round , i can even copy the mesh a few times before noticing any performance loss

it was a well worth risk i took modding this card as i have never modded anything before heh

anyways, off to do more tests

Sorry but i did not make out from your post, was your xfx sucessfull with only the bios mod or from rui's hard mod... I am looking for the right 6800gt to buy

Originally posted by Rectifier That's just it - i've been playing around with the PNY bios, and it just would not work (off course, after every reboot it failed, since it switched to the faulty vertex processor).

Will give it a try.

About the playing with fire : It is still the same GPU, there simply isn't a second power connector (so you'll never get 400Mhz/1000Mhz out of it).

Cooling is easy (with an NV silencer 5 )

By "PNY bios" I pressume you mean the BIOS of a PNY Quadro 4000, yes? Or are you talking about a 6800NU or 6800LE?

Ok, tried with modded PNY - but again I get a garbled screen at boot time.
My best guess is that i (wrongfully) disabled the vertex shaders.
Anyone have more experience with this? Or is it possible this PNY bios only has 3 clock frequencies given (gpu 3d, ddr 3d and gpu 2d, instead of 2d all and 3d all?) (and by modding it i ruined something??)

I can't enable the FastWrite function with the original Dell Beta BIOS.
But Quadro features are OK.

vpopovic successfully solved this problem by modifying the bios file.
But this didn't work for me. After flashing vpopovic's quadro bios, FW is enabled, but no Quadro features.
The system recognized my card as 6800GT.